不相交差族的存在性论文

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S&t8p,3q,&23q,&23q,w4.IITheExistenceofDisjointDifferenceFamilyAuthor:YangJianxiaoSupervisor:Prof.WuDianhuaMajor:MathematicsSpeciality:CombinatoricsGrade:2004ABSTRACTBlockdesi

12、gnisanimportantpartincombinatorialdesigntheory.Theresearchofblockdesignismainlyfocusedonsomeblockdesigns,suchasbalancedincompleteblockdesignresolvablebalancedincompleteblockdesignsymmetricbalancedincompleteblockdesigngroupdivisibledesigntransversaldesigndifferencefamily···ands

13、oon.Supposevandλarepositiveintege